Claim · model-written summary
Lower root medium osmotic potential reduced height, leaf area, and shoot dry weight at both nitrogen levels.
- Taxon
- rice
Oryza sativae1 - Treatment
- lower osmotic potentials of the root mediume0
- Outcome
- Plant height, leaf area and shoot dry weighte0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height, leaf area and shoot dry weight of high and low nitrogen plants were reduced by lower osmotic potentials of the root medium”
e1“rice plants ( Oryza sativa L. ev. IR 36)”
Title
E. B. Yambao; J. C. O'Toole Physiologia Plantarum 1984. doi:10.1111/j.1399-3054.1984.tb04919.x
Other claims from this paper (11)
- Intervention effect Osmotic stress caused greater shoot growth reduction under high than low nitrogen.
- Intervention effect Low nitrogen plants had more root dry matter than high nitrogen plants.
- Observation Stressed plant dawn leaf water potential was lower than solution water potential by 1 × 10 5 to 5.5 × 10 5 Pa.
- Intervention effect Nitrogen deficient stressed plants maintained higher dawn leaf water potential.
- Intervention effect Control leaf osmotic potential at full turgor was about 1.3 × 10 5 Pa higher under low nitrogen.
- Observation Low nitrogen plants achieved 2.6 × 10 5 Pa osmotic adjustment.
- Observation High nitrogen plants achieved 4.3 × 10 5 Pa osmotic adjustment.
- Intervention effect Water stress decreased transpiration and shoot nitrogen content under both nitrogen treatments.
- Association Transpiration and nitrogen uptake were significantly correlated.
- Mechanism Reduced shoot growth from water stress caused lower transpiration.
- Mechanism The authors attribute lower nitrogen content under water stress to reduced dry matter accumulation and transpiring leaf area.